[zfs-discuss] Are HGST (Hitachi) Ultrastar and Deskstar the exact same drive?

Durval Menezes durval.menezes at gmail.com
Mon Dec 1 18:15:25 EST 2014


Thanks Joe. I'm planning to purchase a couple of these in the next few days
and having a side-by-side smartctl comparison will certainly help.

Cheers,
-- 
   Durval.
On Dec 1, 2014 9:11 PM, "Joe Goldthwaite" <joe at goldthwaites.com> wrote:

> I'll do that once I get them hooked up and I'll let you know.
>
> On Mon, Dec 1, 2014 at 4:07 PM, Durval Menezes <durval.menezes at gmail.com>
> wrote:
>
>> Hello Joe,
>>
>> I would be surprised if there aren't any firmware differences between the
>> two. If you can, please post the output of "smartctl -a" for each drive.
>>
>> Cheers,
>> --
>>    Durval.
>> On Dec 1, 2014 8:19 PM, "John Drescher" <drescherjm at gmail.com> wrote:
>>
>>> > I had ordered the cheaper Deskstar drives for my old ZFS array. I
>>> ordered
>>> > three replacement drives last week and they came in today. I noticed
>>> that
>>> > one of them was actually an Ultrastar drive.
>>> >
>>> > I have both drives side by side and they look *exactly* the same.
>>> Every
>>> > specification is identical except for the warranty.  The Ultrastar has
>>> 5
>>> > years compared to 3 years for the Deskstar.
>>> >
>>> > Is this just a marketing gimmick? Do they come of the same
>>> manufacturing
>>> > line and HGST just charges more for the extra warranty?
>>> >
>>> > I'm just curious if anyone has any inside information on this.  In the
>>> > future when they die, I'll probably take them both apart to see if I
>>> can see
>>> > any differences in the internals.
>>>
>>> Enterprise drives are supposed to have better components and undergo
>>> more rigorous testing.
>>>
>>> John
>>>
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